Evaporator



FIG. 1 is a left side view of the evaporator;

FIG. 2 is a rear side view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a front side view thereof;

FIG. 5 is a bottom view thereof; and,

FIG. 6 is a right side view thereof.

The broken lines showing portions of the evaporator are included for the purpose of illustrating portions of the article and form no part of the claimed design. 

CLAIM The ornamental design for an evaporator, as shown and described. 